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- Cooler Master X Silent Edge 850W Platinum Fanless PSU ATX 3.1 PCIe 5.1 Cooler Master X Silent Edge 850W Platinum Fanless PSU ATX 3.1 PCIe 5.1
Cooler Master X Silent Edge 850W Platinum Fanless PSU ATX 3.1 PCIe 5.1
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Cooler Master X Silent Edge Platinum 850W Fanless Power Supply
The X Silent Edge Platinum delivers 850W of completely silent power through its innovative fanless design. This ATX 3.1 compliant PSU eliminates noise and dust accumulation while maintaining exceptional thermal performance through advanced heat pipe technology and a patented aluminum thermal mold.
Fanless Design with Advanced Cooling
The fanless architecture provides total silence during operation while preventing dust buildup inside your system. Cooler Master's proprietary superconductive composite heat pipe technology transfers heat efficiently to the aluminum thermal mold, which dissipates heat without requiring active cooling. An external fan port allows optional supplemental cooling for extreme workloads.
80 Plus Platinum Efficiency & Active Bridge Rectifier
Certified for 80 Plus Platinum efficiency, this PSU achieves over 92% efficiency at typical loads, reducing energy waste and heat generation. The active bridge rectifier replaces traditional bridge diodes, further improving electrical performance and efficiency beyond standard designs.
ATX 3.1 & PCIe 5.1 Ready
Full ATX 3.1 support includes a durable 90-degree 12+4pin (12V-2x6) PCIe 5.1 cable designed for next-generation graphics cards. This cable features lower operating temperatures, enhanced durability, and improved safety compared to previous PCIe power standards.
Digital Monitoring & PMBus Support
The integrated PMBus port enables server-level monitoring of efficiency, temperatures, current load, and performance metrics. Cooler Master's MasterCTRL software provides real-time digital monitoring, allowing users to track PSU temperature, power draw, and system performance through an intuitive interface via the included USB cable.
Premium Components & Fully Modular Design
Industrial-grade Infineon IC chips ensure long-lasting reliability and consistent performance. High-quality Japanese capacitors reduce ripple noise and enhance electrical stability. The fully modular cable system reduces clutter, improves airflow, and simplifies cable management in your build.
Comprehensive Protection & 15-Year Warranty
Multiple protection circuits include OPP, OVP, OTP, OCP, SCP, UVP, plus surge and inrush protection. Backed by a 15-year manufacturer warranty and 100,000-hour MTBF rating, the X Silent Edge Platinum is built for long-term reliability.
Specifications
- Form Factor: ATX
- Series: Cooler Master X Silent Edge Platinum
- Wattage: 850 W
- Modular: Fully Modular
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Compatibility: ATX 12V Ver. 3.1
PCIe 5.1 - #Hide#Wattage Range: 800 - 860W
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Connectors: 1 x ATX 24 Pin = 1x (650mm)
1 x EPS 4+4 Pin = 1x (650mm)
1 x EPS 8 Pin = 1x (650mm)
12 x SATA = 3x (500+150+150+150mm)
4 x Peripheral 4 Pin = 1x (500+120+120+120mm)
4 x PCI-e 6+2 Pin = 4x (550mm)
1 x 12V-2x6 = 1x (650mm)
1 x USB 10P = 1x (800mm) - AC Input: 100 - 240V
- PFC: Active PFC
- Fan Type: Fanless design
- Noise: Silent
- Max Certification: Platinum
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Efficiency: 80+ Platinum
Up to 92% @ Typical Load - MTBF: "100,000 Hours"
- Protection: OPP / OVP / OTP / OCP/ SCP / UVP / Surge & Inrush Protection
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Additional Features: External fan port
A patented aluminium thermal mold
Superconductive composite heat pipe technology
Active bridge rectifier
High-quality Japanese capacitors
Digital monitor powered by MasterCTRL software
industrial grade Infineon IC chips
PMBus port support -
Weight/Dimensions: 4.5 kg
(LxWxH) 180 x 150 x 86mm - Package Weight: 2.0510 kg
- Warranty: 15 Years
- #Hide#ATX 3.1/3.0: ATX 3.1
Delivery & Shipping Policy
Last updated: 19/09/2025
At Tech Direct UK, we aim to get your order to you as quickly and efficiently as possible. Please see below for our delivery terms.
1. Delivery Options & Costs
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Free Delivery – Orders over £50 qualify for free UK standard delivery.
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Standard Delivery – Orders under £50 are charged at £4.99.
2. Delivery Times
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Next Day Delivery – The majority of items are shipped via next day courier if ordered before 2:00pm (Monday–Friday).
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Orders placed after 2:00pm, on weekends, or bank holidays will be processed the next working day.
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Larger or Heavy Items – Certain products (e.g., heavy furniture, oversized goods) may take 2–5 working days for delivery. Estimated times will be displayed at checkout.
3. Delivery Areas
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We deliver to all mainland UK addresses.
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Deliveries to remote areas (e.g., Highlands, Islands, Northern Ireland) may take longer or incur additional charges — these will be shown at checkout before confirming your order.
4. Tracking Your Order
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Once dispatched, you will receive an email confirmation with tracking details (where available).
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You can track your delivery via the courier’s website.
5. Missed Deliveries
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If you are not available at the time of delivery, the courier will leave a card or attempt redelivery.
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Repeated failed delivery attempts may result in the parcel being returned to us. In this case, re-delivery charges may apply.
6. Risk of Loss
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Risk of loss or damage to the goods passes to you once they are delivered.
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Please inspect your order upon receipt and notify us of any issues within 48 hours.
7. Contact Us
If you have any questions about delivery, please contact us:
📧 Email: support@techdirectuk.com